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Express Lane Plus
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8 months ago Edited: 8 months ago, bio_man
Abigail Henderson has ​$1440.00 budgeted for spending money on an upcoming trip to Country A and Country B. Country​ A's currency is trading at ​$1.40 per currency​ A, and Country​ B's currency is trading at ​$1.60 per currency B. She plans to spend more time in Country​ A, so she wants to have four times as much of currency A as currency B. Set up and solve a system of equations to model this​ problem, and explain what the answer means in practical terms. Complete the equation that represents the total cost of purchasing currency. Let x be the number of currency A and y the number of currency B.
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wrote...
Educator
8 months ago
Here's how I think you do it. First, set up your equations:

\(A = 4B\)
\(1.4 A + 1.6 B = 1440\)

You end up with

a = 800.0
b = 200.0

So you need 800 worth of country A's currency, and 200 worth of country B's currency, to make 1440 because of conversion rate.

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wrote...
2 months ago
Thank you!! It was allot of help!
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